Fish are the most prominent predators of leeches, and other predators include aquatic birds, water bugs, crayfish, turtles, snakes and other leeches. Regardless of their habitat, all leeches are... Fish are the most prominent predators of leeches, and other predators include aquatic birds, water bugs, crayfish, turtles, snakes and other leeches. Regardless of their habitat, all leeches are...
Proteins form an important nutrient in the human body. Made up of essential and non-essential amino acids, it helps in building and repairing muscles and bones, restoring body cells, providing a source of energy and controlling many of the important metabolism processes in the body.
Key Points. 1  Proteins are essential for the main physiological processes of life and perform functions in every system of the human body. 2  A protein's shape determines its function. 3  Proteins are composed of amino acid subunits that form polypeptide chains.